of an affair with hisbiographer,paulabroadwell. benghaziis at the center of another capitol hill battle. senate republicans say they will not accept the nomination of u.n. ambassador susan rice as a replacement for secretary of state hillary clinton. >> we will do whatever is necessary to block the nomination. >> reporter: senators john mccain and lindsey graham say rice was either lying or incompetent when she made this statement five days after the attack. >> we do not have information at present that leads us to conclude that this was premeditated or preplanned. >> reporter: president obama said the ambassador was presenting the intelligence information she was given, to challenge those who attacked ambassador rice. >> if senator mccain and graham and others want to go after somebody, they should go after me. >> reporter: senator mccain accepted that offer. >> the president of the united states the commander-in-chief is the most responsible and i hope the president has no illusions about our view of his responsibility. >> reporter: mccain and graham want a watergate-style committee t

of the spy agency. petraeus left the job when news of an affair with hisbiographerpaulabroadwellbecamepublic. >> did you have any indication -- [overlapping speakers] >> reporter: tampa socialite jill kelly initiated the resignation that led to his resignation after receiving e- mails linked to broadwell and kelley is connected to another general as well america's top commander in afghanistan general john allen. the pentagon look is at more than 20,000 documents and e- mails between allen and kelley which some have labeled inappropriate and flirtatious. >> no one should leap to any conclusions. >> reporter: general allen's nomination to be the next leader of u.s. forces european command and nato's supreme allied commander is in doubt. >> his nomination has been put on hold as a prudent measure until we determine what the facts are. >> reporter: the white house says president obama still trusts general allen. >> he has faith in general allen, believes he is doing and has done an excellent job. >> reporter: general joseph dunford will replace general allen in afghanistan as soon as he i